Well-drilling tool



1,542,776 Me lN AM V WELL DRILLING- TOOL Filed Oct. 7} 1924 Patented June 16, 1925' rim-ms Es twee.

cm'roiv M. INGRAM, or roa gmg, o LAHoMn, Assrenon or can-grams 110 Roman nwnnDMoN, or roars-1w, oxnarror'vm,

WELL-DRILLING TOOL.

Application filed October 7, 1924. Serial No. 742,251.

of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention provides a tool adapted for use in drilling oil, artesian and other deep wells to prevent loss of the drilling tool and abandonment of the well in the event of the drill stem becoming stuck in the well.

To this end the device consists in the provision of means for removing sand, mud, and other matter from around the drill stem and head and comprises a cylindrical casing made of two similar sections hingedly secured together and each section comprising concentric walls spaced apart to form a space to receive the sand, mud, etc, and a valve in the bottom -of the section in each instance that will open to permit the sand and mud to enter the space between the walls and will close to hold the matter therein for removal from the boring. The space enclosed by the inner walls being provided to permit the use of the tool while the drill stem is in place in the well as would be obviously necessary should the drill stem and drill be stuck in the well as stated.

While the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various chan es in the form, proportion and minor detai s of construction may be resorted to without departing from the nature of the.

invention. 7

Referring to the accompanying drawings forming a part of the specification,

Figure 1 is an elevational view of one form of the tool comprising similar annular sections hingedly connected and held closed by suitable fastening means, parts being broken away, I

Figure 2 IS a similar view taken at a right wall 8.

angle to Figure 1, parts being broken away, 1 Figure 3 is a bottom View, and t Figure 4 is a sectional view taken on the line 4-4 of Figure 1.

Corresponding and like parts are referred toin the following description and designated in the several views of the drawings by like reference characters.

In the preferred form of the invention, the tool appears as a double walled cylinder, comprising similar sections which are hing edly connected at one side and secured at the opposite side by suitable fastening means. The annular formation of the tool coinprises a space 1 between the outer and inner walls 2 and 3, and this space is adapted to receive the sand, cuttings, or other material thereby preventing the binding of the drill stem which passes freely through the cen tral opening 4 formed by the inner sectional A plurality of valves 5 close the lower end of the annular space 1 and are adapted to open upwardly and each valve 5 is provided with an extension 6 which engages the sand or other material in'the well to open the valves to admit of the material passing into the space 1, said valves closing downwardly when the device is elevated to relieve the projections 6 from upward pressure. An inner seat 7 limits the downward closing of each of the valves. The projections 6 areof loop formation and cooperate with cross pins 8 whereby to limit the upward movement of the valves. As heretofore stated the device is in two sections hingedly connected by means of hinges 2* secured to walls 2, and 2 indicate one or more latches to hold the two sections in cylindrical formation.

A bail is provided for operating the device and because of the sectional formation of the device the bail is also of sectional formation, the sections being similar and each consisting of a lower curved portion 9 and a shank portion 10 terminating in an eye 11 to 95 receive the operating rod or cable.

What is claimed is 1. A device of the class described comprising two similar semi-cylindrical sections hingedly secured together and arranged to 1 be secured in cylindrical formation, each of in cylindrical formation, inwardly extendsaid sections comprising two Walls spaced ing shoulders on said Walls, and a valve apart, and a valve mounted in the bottom of seated on the shoulders in each section.

each section to control communication with In testimony whereof I affix my signature 5 the space between said Walls. in presence of two Witnesses.

2. A device of the class described comprising two similar semi-cylindrical sections CLIB TON INGRAM each consisting of two concentric Walls WVitnesses: spaced apart, said sections being hingedly D. N. FINK, Jr.,

1 secured together and adapted to be secured P. J. HARRIS. 

